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Rename tutte_coxeter_36e -> tutte_coxeter_36k

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It was e for edge, now k for keys. Why? I'm toying with ideas
for a full Tutte Coxeter graph (30 vertices/nodes/GPIO pins,
45 edges/switches) incuding 42 keys plus a rotary encoder
(these act like three switches: clockwise, anticlockwise,
press - so 42 edges for normal keys + 3 edges for a rotary
encoder gives 42 + 3 = 45 edges) which could be named with
suffix 43ke.
This commit is contained in:
Peter J. A. Cock 2025-06-16 11:43:30 +09:00
parent 455cf7c7d6
commit 0f5120c743
5 changed files with 7 additions and 7 deletions
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keyboards/tutte_coxeter_36k/readme.md Normal file
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# Tutte Coxeter 36k
![Partial Tutte-Coxeter Graph (26/30 vertices, 36/45 edges)](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhvS5QfAl7YotptMtpu0nG8XOHOsqG2vocUFF2sRgrn_QwAcUQNhDkctHt_42rQor3Bb5tbAW6FiOsYqv2craP086HMTuAqWk9U0A4yOeEsQkhyphenhyphenUxoayJWf5e-N3_Jg1TC1p9YAiVPTK02pEVCUu3hl72REIk5BAjXgZGoF7T-NWQ28iRirwFs6yzFzAe0/w200-h194/Screenshot%202025-05-28%20at%2014.59.35.png)
This is firmware for an PR2040 monoblock 36 key design (three rows of five, and three thumb keys, for each hand).
This is a *diode-free* design using a sparse 13 by 13 scanning matrix designed from a partial Tutte-Coxeter graph
(using only 26 vertices or GPIO pins with 36 edges or keys - see this
[blog post](https://astrobeano.blogspot.com/2025/05/ergo-mech-keyboard-wiring-using-tutte-coxeter-graph.html)
for background although the final pin selection changed).
The first physical PCB for this is designed to fit in the [Gamma Omega keyboard](https://github.com/unspecworks/gamma-omega) case,
and use the same Raspberry Pi Pico based microcontroller board.
* Keyboard Maintainer: [Peter J. A. Cock](https://github.com/peterjc)
* Hardware Supported: Tutte Coxeter 36k (single PCB) with Raspberry Pi Pico
* Hardware Availability: https://github.com/peterjc/gamma-omega
Make example for this keyboard (after setting up your build environment):
make tutte_coxeter_36k:default
Flashing example for this keyboard:
make tutte_coxetter_36k:default:flash
See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
## Bootloader
Enter the bootloader in 3 ways:
* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (bottom left key, Qwerty `z`) and plug in the keyboard
* **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead
* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available